My Netgear router/modem has given up on me, so I'll need to buy another modem.. I want something I can run DGTeam/Tomato on to allow me to tweak the settings, but which is the best? I am not bothered about G/N.. I am looking at getting a second hand DG834G as I know they are quite good.. Which version should I go for? 2/3/4/5? Any other modems I should consider?